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http://dx.doi.org/10.7745/KJSSF.2011.44.6.1112

Recommendation of the Amount of Nitrogen Top Dressing based on Soil Nitrate Nitrogen Content for Leaf Perilla (Perilla frutescens) under the Plastic Film House  

Kang, Seong-Soo (Soil & Fertilizer Management Division, National Academy of Agricultural Science, RDA)
Lee, Ju-Young (Soil & Fertilizer Management Division, National Academy of Agricultural Science, RDA)
Sung, Jwa-Kyung (Soil & Fertilizer Management Division, National Academy of Agricultural Science, RDA)
Gong, Hyo-Young (Soil & Fertilizer Management Division, National Academy of Agricultural Science, RDA)
Jung, Hyung-Jin (Soil & Fertilizer Management Division, National Academy of Agricultural Science, RDA)
Park, Chang-Hwan (Department of Functional Crop, NICS, RDA)
Yun, Yeo-Uk (Chungcheongnamdo Agricultural Research & Extension Services)
Kim, Myung-Sook (Soil & Fertilizer Management Division, National Academy of Agricultural Science, RDA)
Kim, Yoo-Hak (Soil & Fertilizer Management Division, National Academy of Agricultural Science, RDA)
Publication Information
Korean Journal of Soil Science and Fertilizer / v.44, no.6, 2011 , pp. 1112-1117 More about this Journal
Abstract
This study was conducted to recommend nitrogen (N) top dressing based on soil nitrate content for leaf perilla under forcing culture in Gumsan-gun and Milyang-si. Experimental design was the randomized complete block design for five N fertilization levels and conventional fertilization. Dry weight, nitrogen uptake, and the node number of leaf perilla were measured and soil nitrate contents were analyzed monthly. The amount of nitrogen uptake for growth of a node with two leaves was $2.2kg\;10a^{-1}$ for Gumsan site and $3.5kg\;10a^{-1}$ for Milyang site. Lower level of soil nitrate N concentration for standard N fertilization was determined as $10mg\;kg^{-1}$ for both sites. Soil depth, bulk density, utilization rate of soil nitrate N, and the amount of N uptake for growth of a node with two leaves were considered for calculation of upper level of soil nitrate N concentration. The upper levels of soil nitrate N concentration for no N fertilization were determined as $30mg\;kg^{-1}$ for Gumsan site and as $40mg\;kg^{-1}$ for Milyang site. Consequently the recommendation equations for the N top dressing were Y=-0.157X+4.71 for Gumsan site and Y=-0.1667X+6.6667 for Milyang site.
Keywords
Leaf Perilla; Nitrogen fertilizer; Soil nitrate nitrogen; Top dressing;
Citations & Related Records
Times Cited By KSCI : 7  (Citation Analysis)
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